@misc{indiciaec4451843bdca,
  title = {Mines, prospects, and occurrences map of the Seward and Blying Sound quadrangles, Alaska},
  author = {Russell G. Tysdal},
  year = {1978},
  doi = {10.3133/mf880a},
  url = {https://pubs.usgs.gov/publication/mf880A},
  note = {Source identifier: mf880A}
}